Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: Thunderbolt: Mark the XDomain as unplugged when the router is removed. I noticed that when we perform discrete host-router NVM upgrades, and the router is hot-unplugged due to NVM firmware authentication issues, if there are othe...

CVE-2026-74691

In the Linux kernel, the following vulnerability has been resolved: net: thunderbolt: Tear down DMA paths before stopping the rings tbnetteardown stops both rings and frees their frame buffers before calling tbxdomaindisablepaths. tbringstop zeroes the ring's descriptor base and tbnetfreebuffers...

CVE-2026-74691 net: thunderbolt: Tear down DMA paths before stopping the rings

In the Linux kernel, the following vulnerability has been resolved: net: thunderbolt: Tear down DMA paths before stopping the rings tbnetteardown stops both rings and frees their frame buffers before calling tbxdomaindisablepaths. tbringstop zeroes the ring's descriptor base and tbnetfreebuffers...

CVE-2026-74691 net: thunderbolt: Tear down DMA paths before stopping the rings

In the Linux kernel, the following vulnerability has been resolved: net: thunderbolt: Tear down DMA paths before stopping the rings tbnetteardown stops both rings and frees their frame buffers before calling tbxdomaindisablepaths. tbringstop zeroes the ring's descriptor base and tbnetfreebuffers...

CVE-2026-74691

CVE-2026-74691 is a teardown ordering bug in the Linux kernel Thunderbolt network driver (net: thunderbolt / tbnet). The driver stops its DMA rings and frees frame buffers before deactivating the high-speed DMA paths, but the setup path was previously fixed to enable paths last. Teardown was neve...

PT-2026-79696

In the Linux kernel, the following vulnerability has been resolved: net: thunderbolt: Tear down DMA paths before stopping the rings tbnet tear down stops both rings and frees their frame buffers before calling tb xdomain disable paths. tb ring stop zeroes the ring's descriptor base and tbnet free...

flash-xdomain-xploit

Autore: Gursev Singh Kalra [email protected] Bypassare la Same Origin Policy con Flash e crossdomain.xml insicuro Compilazione e distribuzione del codice ActionScript Proof of Concept 1. Scarica e installa Apache Flex SDK. Include un compilatore ActionScript. 2. Copia il codice ActionScript...

CVE-2026-74575

A flaw was found in the Thunderbolt XDomain driver of the Linux kernel. A race condition can occur during the removal of a Thunderbolt cross-domain device XDomain. This allows a delayed work item to be queued after its cancellation but before the XDomain object is freed, leading to a use-after-fr...

CVE-2026-74575

In the Linux kernel, the following vulnerability has been resolved: thunderbolt: Prevent XDomain delayed work use-after-free on disconnect tbxdphandlerequest runs on systemwq and queues xd-statework via queuedelayedwork in three request handlers: PROPERTIESCHANGEDREQUEST, UUIDREQUEST via...

CVE-2026-63893

A flaw was found in the Linux kernel's Thunderbolt property handling. A remote attacker, by acting as a malicious XDomain peer, could craft a special property entry that causes an integer overflow when calculating memory access. This overflow allows the system to read memory outside of the intend...

SUSE CVE-2026-63891

In the Linux kernel, the following vulnerability has been resolved: thunderbolt: property: Cap recursion depth in tbpropertyparsedir A DIRECTORY entry's value field is used as the diroffset for a recursive call into tbpropertyparsedir with no depth counter. A crafted peer that chains DIRECTORY...

Linux Distros Unpatched Vulnerability : CVE-2026-63891

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - thunderbolt: property: Cap recursion depth in tbpropertyparsedir A DIRECTORY entry's value field is used as the diroffset for a recursive call into...

CVE-2026-63891

In the Linux kernel, the following vulnerability has been resolved: thunderbolt: property: Cap recursion depth in tbpropertyparsedir A DIRECTORY entry's value field is used as the diroffset for a recursive call into tbpropertyparsedir with no depth counter. A crafted peer that chains DIRECTORY...

CVE-2026-63893

The connected documents describe a Linux kernel vulnerability in thunderbolt property parsing: a wrap of the 32-bit sum (entry->value + entry->length) allows an attacker-controlled offset to read memory beyond the property block. The root cause is not validating the sum with overflow checks...

CVE-2026-63891 thunderbolt: property: Cap recursion depth in __tb_property_parse_dir()

In the Linux kernel, the following vulnerability has been resolved: thunderbolt: property: Cap recursion depth in tbpropertyparsedir A DIRECTORY entry's value field is used as the diroffset for a recursive call into tbpropertyparsedir with no depth counter. A crafted peer that chains DIRECTORY...

CVE-2026-63891

In the Linux kernel, the following vulnerability has been resolved: thunderbolt: property: Cap recursion depth in tbpropertyparsedir A DIRECTORY entry's value field is used as the diroffset for a recursive call into tbpropertyparsedir with no depth counter. A crafted peer that chains DIRECTORY...

CVE-2026-63891 thunderbolt: property: Cap recursion depth in __tb_property_parse_dir()

In the Linux kernel, the following vulnerability has been resolved: thunderbolt: property: Cap recursion depth in tbpropertyparsedir A DIRECTORY entry's value field is used as the diroffset for a recursive call into tbpropertyparsedir with no depth counter. A crafted peer that chains DIRECTORY...

CVE-2026-63891

The CVE affects the Linux kernel Thunderbolt property parser. A crafted peer can trigger a back‑reference loop in DIRECTORY entries, exhausting stack via __tb_property_parse_dir() because the value is used as dir_offset without a depth counter. The fix threads a depth counter through tb_property_...

PT-2026-61210

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An integer wrap occurs in the tb property entry valid function when calculating the sum of entry-value u32 and entry-length u16. A malicious XDomain peer can provide specific values that...

PT-2026-61208

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the thunderbolt component where the tb property parse dir function lacks a recursion depth counter when processing DIRECTORY entries. A malicious XDomain peer can crea...